258                 function(l) {  argument
259                     if (l.target === d) {
260                         l.source.source = true;
267                 function(l) {  argument
268                     if (l.source === d) {
269                         l.target.target = true;
275             .filter(function(l) { return l.target === d || l.source === d; })  argument
321                     let l = map[d.data.name].path(map[i]);
322                     l.allow = true;
323                     depends.push(l);
329                     let l = map[d.data.name].path(map[i[0]]);
330                     l.allow = false;
331                     depends.push(l);